1.Arteriovenous Fistula of the Filum Terminale Misdiagnosed and Previously Operated as Lower Lumbar Degenerative Disease.
Pankaj SHARMA ; Alok RANJAN ; Rahul LATH
Asian Spine Journal 2014;8(3):365-370
Filum terminale arteriovenous fistula (FTAVF) presenting as a cause of failed back surgery syndrome is a rare entity. We report a 48-year-old male patient who presented with clinical features of a conus medullaris/cauda equina lesion. He had upper and lower motor neuron signs in both the lower limbs with autonomic dysfunction. The patient was misdiagnosed and was operated twice earlier for lumbar canal stenosis and disc prolapse. After reviewing his clinical and radiological findings a diagnosis of FTAVF was made. He underwent surgery and there was a significant improvement in his neurological functions. We discuss the case and review the literature on FTAVF's.
Arteriovenous Fistula*
;
Cauda Equina*
;
Constriction, Pathologic
;
Conus Snail
;
Diagnosis
;
Failed Back Surgery Syndrome
;
Humans
;
Lower Extremity
;
Male
;
Middle Aged
;
Motor Neurons
;
Prolapse
2.Management of maxillofacial injuries in bear mauling cases: a review of 20 cases.
Indu Bhusan KAR ; Prashant Dilip CHOPDA ; Niranjan MISHRA ; Alok Kumar SETHI ; Bikas Ranjan MAHAVOI
Journal of the Korean Association of Oral and Maxillofacial Surgeons 2016;42(1):13-19
OBJECTIVES: As the craniofacial and neck regions are prime areas of injury in bear attacks, the careful management of soft and hard tissue injuries and selection of reconstructive options is of the utmost importance. This study will review the incidence and patterns of bear mauling in eastern India reported to our department and the various modalities used for their treatment over a period of 7 years. It also documents the risks of infection in bear mauling cases and the complications that have occurred. MATERIALS AND METHODS: Twenty cases were treated over the study period. Cases were evaluated for soft and hard tissue injuries including tissue loss and corresponding management in the craniofacial region. Cases were also evaluated for other associated injuries, organ damage and related complications. RESULTS: Various modalities of treatment were used for the management of victims, ranging from simple primary repairs to free tissue transfers. Simple primary repairs were done in 75% of cases, while the management of the injured victims required reconstruction by local, regional or distant flaps in 25%. Free tissue transfers were performed in 15% of cases, and no cases of wound infection were detected in the course of treatment. CONCLUSION: Knowledge of various reconstructive techniques is essential for managing maxillofacial injuries in bear mauling cases. Modern reconstructive procedures like free tissue transfer are reliable options for reconstruction with minimal co-morbidity and dramatic improvement in treatment outcomes.
Free Tissue Flaps
;
Incidence
;
India
;
Maxillofacial Injuries*
;
Neck
;
Reconstructive Surgical Procedures
;
Wound Infection
3.Modulation of signal transduction pathways by natural compounds in cancer.
Alok RANJAN ; Neel M FOFARIA ; Sung-Hoon KIM ; Sanjay K SRIVASTAVA
Chinese Journal of Natural Medicines (English Ed.) 2015;13(10):730-742
Cancer is generally regarded as the result of abnormal growth of cells. According to World Health Organization, cancer is the leading cause of mortality worldwide. Mother nature provides a large source of bioactive compounds with excellent therapeutic efficacy. Numerous phytochemicals from nature have been investigated for anticancer properties. In this review article, we discuss several natural compounds, which have shown anti-cancer activity. Natural compounds induce cell cycle arrest, activate intrinsic and extrinsic apoptosis pathways, generate Reactive Oxygen Species (ROS), and down-regulate activated signaling pathways, resulting in inhibition of cell proliferation, progression and metastasis of cancer. Several preclinical studies have suggested that natural compounds can also increase the sensitivity of resistant cancers to available chemotherapy agents. Furthermore, combining FDA approved anti-cancer drugs with natural compounds results in improved efficacy. On the basis of these exciting outcomes of natural compounds against several cancer types, several agents have already advanced to clinical trials. In conclusion, preclinical results and clinical outcomes against cancer suggest promising anticancer efficacy of agents from natural sources.
Animals
;
Antineoplastic Agents, Phytogenic
;
pharmacology
;
therapeutic use
;
Humans
;
Magnoliopsida
;
chemistry
;
Neoplasms
;
drug therapy
;
Phytochemicals
;
pharmacology
;
therapeutic use
;
Phytotherapy
;
Plant Extracts
;
pharmacology
;
therapeutic use
;
Signal Transduction
;
drug effects